Primitive boolean attribute doesn't work with entity views

[beikov]

Although we support primitive types now, the special case for the boolean type is problematic. When having an abstract method boolean isAbc() the attribute name extraction fails.

[roma2341]

it seems that it's doesn't work in 1.6.8 because boolean properties in abstract class always false in my project.
it's because of
@mapping(fetch = FetchStrategy.MULTISET)
If I use JOIN everything is fine

[beikov]

Thanks for the report @roma2341, but let's discuss the matter about multiset on #1830